“I don’t think it will be too bad,” offensive line coach T.J. Woods said after practice. “I think it is a tweak. We’ll see.

“He's still got to go in and check it out.”

Woods shifted left guard Dallas Lewallen, a redshirt junior from Berlin, to center to replace Voltz on the No. 1 line.

Zac Matthias took over at left guard and Kyle Costigan worked at right guard. Costigan and Matthias have been splitting reps at right guard throughout camp.

Because UW had a shortage of healthy linemen in the spring, Lewallen got work at left guard, left tackle and center.

“He can play all three positions,” Woods said.

The No. 2 center Wednesday was Chris Gill, a walk-on who joined the program earlier this summer after graduating from Ole Miss.

The rest of the No. 2 line featured Tyler Marz at left tackle, Ray Ball at left guard, Trent Denlinger at right guard and Walker Williams at right tackle.

Lewallen did have one critical error, a botched snap to quarterback Joel Stave.

“He learned some valuable lessons with C-Q issues,” Woods said of the center-quarterback exchange. “When you’re the No. 2 guy and you’re not getting all the reps at practice there’s got to be a sense of urgency to make sure you know the calls. We’ll work through that.

“There was just one but one is too many. That is the bottom line. If Dan goes down in the second quarter of a game and here comes Dallas and we botch a snap that is a game-changer. He is learning that.”

Head coach Gary Andersen said after practice Wednesday night he needs to make sure Lewallen has sufficient time before practice starts to snap the ball to the quarterbacks.

"I blame that not on Dallas," he said. "Anytime something like that happens I blame that on me. Obviously I didn’t do a good enough job getting him prepared in that situation."